TY  - BOOK
AU  - Owens,Robert E.
AU  - Haas,Adelaide
AU  - Metz,Dale Evan
TI  - Introduction to communication disorders: a lifespan perspective 
SN  - 0205487874
PY  - 2007///
CY  - Boston
PB  - Pearson/Allyn and Bacon
KW  - Communicative disorders
N1  - Includes bibliographical references (p. 506-534) and indexes
ER  -